מלכים ב, פרק י״ט, פסוק ב׳

A distinguished delegation of ministers and priests sets out in mourning clothes to seek advice and guidance from a great spiritual leader. Every single member of the group arrives covered in sackcloth, without exception. They direct their appeal specifically to Isaiah, choosing to seek his counsel because he is universally recognized as the greatest and most respected prophet of their time [ביאור שטיינזלץ].